This paper presents the plastic characterization of several extruded ceramic emulsions prepared by emulsification
of different ceramic suspensions: i) red clay, ii) kaolin and iii) alumina, which were performed in order to
obtain some insights to upscale the ceramic emulsion extrusion process. Stress-deformation curves obtained
by compression of the pre-extruded bodies were used to obtain the plasticity characterization of the emulsions
with differentwater contents. Deformation amplitude, yield stress and rupture stress revealed themost sensitive
parameters, thus giving valuable information about the plastic behavior of the ceramic emulsions, as well as
important guidelines for extrusion upscale. The microstructural features of the sintered bodies were kept
constants even after the extrusion process, making this process be feasible for large-scale production of cellular
ceramic bodies.
This paper presents the plastic characterization of several extruded ceramic emulsions prepared by emulsification
of different ceramic suspensions: i) red clay, ii) kaolin and iii) alumina, which were performed in order to
obtain some insights to upscale the ceramic emulsion extrusion process. Stress-deformation curves obtained
by compression of the pre-extruded bodies were used to obtain the plasticity characterization of the emulsions
with differentwater contents. Deformation amplitude, yield stress and rupture stress revealed themost sensitive
parameters, thus giving valuable information about the plastic behavior of the ceramic emulsions, as well as
important guidelines for extrusion upscale. The microstructural features of the sintered bodies were kept
constants even after the extrusion process, making this process be feasible for large-scale production of cellular
ceramic bodies.
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